Question

A jar contains 30 red, 30 blue, and 60

white buttons. You pick one button
at random, find the probability that it
is red.​

Answer 1

1/4

Explanation:

Answer 2

The probability of picking red button is
`(1)/(4)`

Solution:

Given, A jar contains 30 red, 30 blue, and 60 white buttons.

You pick one button at a random choice,

We have to find the probability that it is red button.

Now, total number of buttons = 30 + 30 + 60 = 120 buttons.

Number of favourable cases for red button = 30 red buttons.

The probability of an event is given as:

`\text { probability of a event }=\frac{\text { favourable ways to pick red }}{\text { total possiblities }}`

`=(30)/(120)=(1)/(4)`

Thus the probability that it is red is
`(1)/(4)`